I'm thinking of putting a 2 storey extension (flat roof) on the rear of my 1930's solid wall semi (no skeilings). the idea is to make the existing two upstairs bedrooms bigger by 5ft (knock out old rear wall).
Will I need nasty old heavy RSJ's to support the roof wall plate? or will I get away with lovely old 9x2's bolted together seeing as we aren't supporting any silly old brickwork?
Will I need nasty old heavy RSJ's to support the roof wall plate? or will I get away with lovely old 9x2's bolted together seeing as we aren't supporting any silly old brickwork?